There _______ something wrong with my co 发布时间:2017-04-27 21:50 │ 来源:www.tikuol.com 题型:选择题 问题: There _______ something wrong with my computer a moment ago.A.isB.areC.wasD.were
题型:选择题 .静止在水面上的船长为L、质量为M,一个质量为m的人站在船头,当此人由船头走到船尾时,不计水的阻力,船移动的距离是 A.mL/MB.mL/(M+m)C.mL/(M-m)D.(M-m)L/(M+m) 查看答案